1,3

See A056371 for an explanation of step shifts. Permuting the symbols will not change the structure.

M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.

Sum mu(d)*A056392(n/d) where d|n.

Cf. A056382.

Sequence in context: A066809 A009848 A153891 this_sequence A106386 A000232 A067789

Adjacent sequences: A056399 A056400 A056401 this_sequence A056403 A056404 A056405

nonn

Marks R. Nester (nesterm(AT)dpi.qld.gov.au)